Delete Keys

Description

This operation deletes multiple keys and the corresponding values from a Hive store.

Method

Backendless.Hive(hiveName).StoreType().delete(keys);

where:

Argument	Description
hiveName	Name of a hive where the operation is performed. String value.
StoreType	This placeholder must be substituted with one of the following stores types: KeyValueStore, ListStore, MapStore, SetStore, SortedSetStore.
keys	Represents an array of keys that must be deleted from the specified store. Array of string values.

Return Value

The number of deleted keys. If no keys are deleted, then 0 is returned.

Example

The example below deletes the "fruits" and "vegetables" keys from the list store.

List<String> keys = new ArrayList<>();
keys.add("fruits");
keys.add("vegetables");

Backendless.Hive("groceryStore").ListStore().delete(keys);

where:

Argument	Description
"groceryStore"	Name of a hive where the operation is performed.
"fruits","vegetables"	The array of keys to delete from the store.

Codeless Reference

where:

Argument	Description
hive name	Name of a hive where the operation is performed.
type	Storage type, can be one of the following: Key / Value, Sorted Set, Set, Map, List.
keys	An array of key names (as string values) to delete.

Returns the number of deleted keys. If no keys are deleted, then 0 is returned.

Consider the following Key Value storage:

The example below deletes two key-value pairs from the Key Value storage.

The key-value storage will look as shown below after the Codeless logic runs: